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Update/bugfix pypush_gsa_icloud.py #68

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merged 1 commit into from
Nov 19, 2024
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Update/bugfix pypush_gsa_icloud.py #68

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11 changes: 7 additions & 4 deletions pypush_gsa_icloud.py
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Original file line number Diff line number Diff line change
Expand Up @@ -71,12 +71,12 @@ def gsa_authenticate(username, password, second_factor='sms'):

r = gsa_authenticated_request({"A2k": A, "ps": ["s2k", "s2k_fo"], "u": username, "o": "init"})

if r["sp"] != "s2k":
print(f"This implementation only supports s2k. Server returned {r['sp']}")
if r["sp"] not in ["s2k", "s2k_fo"]:
print(f"This implementation only supports s2k and sk2_fo. Server returned {r['sp']}")
return

# Change the password out from under the SRP library, as we couldn't calculate it without the salt.
usr.p = encrypt_password(password, r["s"], r["i"])
usr.p = encrypt_password(password, r["s"], r["i"], r["sp"])

M = usr.process_challenge(r["s"], r["B"])

Expand Down Expand Up @@ -197,8 +197,11 @@ def generate_meta_headers(serial="0", user_id=uuid.uuid4(), device_id=uuid.uuid4
"X-Apple-I-SRL-NO": serial, # Serial number
}

def encrypt_password(password, salt, iterations):
def encrypt_password(password, salt, iterations, protocol):
assert protocol in ["s2k", "s2k_fo"]
p = hashlib.sha256(password.encode("utf-8")).digest()
if protocol == "s2k_fo":
p = p.hex().encode("utf-8")
return pbkdf2.PBKDF2(p, salt, iterations, SHA256).read(32)

def create_session_key(usr, name):
Expand Down